{"slug":"saylorinnovations-com-api-chain-events-3bf950","title":"Contract event logs on 16 EVM chains from recent blocks, newest first","host":"saylorinnovations.com","method":"GET","resource":"https://saylorinnovations.com/api/chain/events","category":"other","description":"Contract event logs on 16 EVM chains from recent blocks, newest first: Transfer, Approval and Swap events labelled and filterable by topic and block range.","price_listed":0.01,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","blocks":"30","chain":"base","event":"Transfer","limit":"5"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"address":{"description":"the contract that emitted the events","type":"string"},"blocks":{"description":"optional number of recent blocks to scan, 1 to 2000 (default 500)","type":"string"},"chain":{"description":"chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id","type":"string"},"event":{"description":"optional event name (Transfer, Approval, ApprovalForAll, Deposit, Withdrawal, UniswapV2Swap, UniswapV3Swap, Sync, OwnershipTransferred, Upgraded) or a 0x topic0 hash","type":"string"},"limit":{"description":"optional maximum events returned, 1 to 200 (default 50)","type":"string"}},"required":["chain","address"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"address":{"description":"contract whose logs were read","type":"string"},"blocks_scanned":{"description":"number of blocks scanned","type":"number"},"chain":{"description":"the chain name that was queried","type":"string"},"chain_id":{"description":"EIP-155 chain id of that network","type":"number"},"events":{"description":"matching logs","items":{"properties":{"amount_raw":{"description":"amount in base units for Transfer and Approval","type":["string","null"]},"block_number":{"description":"block of the log","type":["number","null"]},"data":{"description":"raw log data, null when over 512 bytes","type":["string","null"]},"event":{"description":"event name when topic0 is a known one","type":["string","null"]},"from_or_owner":{"description":"first indexed address for Transfer and Approval","type":["string","null"]},"log_index":{"description":"position among the block's logs","type":["number","null"]},"to_or_spender":{"description":"second indexed address for Transfer and Approval","type":["string","null"]},"topic0":{"description":"event signature hash","type":["string","null"]},"topics_hex":{"description":"up to four raw topics","type":["array","null"]},"tx_hash":{"description":"transaction that emitted it","type":["string","null"]}},"type":"object"},"type":["array","null"]},"from_block":{"description":"first block scanned","type":"number"},"matched":{"description":"logs matching the filter in that range","type":"number"},"newest_first":{"description":"true: events are ordered newest first","type":"boolean"},"note":{"description":"plain-language reading of the result","type":"string"},"returned":{"description":"logs returned in this response","type":"number"},"source":{"description":"where the data was read from","type":"string"},"to_block":{"description":"last block scanned","type":"number"}},"required":["chain","chain_id","address","from_block","to_block","matched","returned","events","note","source"],"type":"object"},"type":{"const":"json","type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Contract event logs on 16 EVM chains from recent blocks, newest first: Transfer, Approval and Swap events labelled and filterable by topic and block range.","last_updated":"2026-10-21T04:11:26.008Z","schemes":["exact"]}